wip: add Logger#clearScreen method

Author: mizdra

packages/codegen/src/logger/formatter.test.ts

@@ -1,6 +1,6 @@
 import dedent from 'dedent';
 import ts from 'typescript';
-import { describe, expect, it } from 'vitest';
+import { describe, expect, test } from 'vitest';
 import { formatDiagnostics } from './formatter';
 
 describe('formatDiagnostics', () => {
@@ -38,7 +38,7 @@ describe('formatDiagnostics', () => {
     },
   ];
 
-  it('formats diagnostics with color and context when pretty is true', () => {
+  test('formats diagnostics with color and context when pretty is true', () => {
     const result = formatDiagnostics(diagnostics, host, true);
     expect(result).toMatchInlineSnapshot(`
       "test.module.css:1:2 - error: \`a_1\` is not allowed
@@ -55,7 +55,7 @@ describe('formatDiagnostics', () => {
     `);
   });
 
-  it('formats diagnostics without color and context when pretty is false', () => {
+  test('formats diagnostics without color and context when pretty is false', () => {
     const result = formatDiagnostics(diagnostics, host, false);
     expect(result).toMatchInlineSnapshot(`
       "test.module.css(1,2): error: \`a_1\` is not allowed

packages/codegen/src/logger/logger.ts

@@ -8,6 +8,7 @@ export interface Logger {
   logDiagnostics(diagnostics: Diagnostic[]): void;
   logError(error: unknown): void;
   logMessage(message: string): void;
+  clearScreen(): void;
 }
 
 export function createLogger(cwd: string, pretty: boolean): Logger {
@@ -45,5 +46,8 @@ export function createLogger(cwd: string, pretty: boolean): Logger {
     logMessage(message: string): void {
       process.stdout.write(`${message}\n`);
     },
+    clearScreen(): void {
+      process.stdout.write('\x1B[2J\x1B[3J\x1B[H');
+    },
   };
 }

packages/codegen/src/test/logger.ts

@@ -6,5 +6,6 @@ export function createLoggerSpy() {
     logDiagnostics: vi.fn(),
     logError: vi.fn(),
     logMessage: vi.fn(),
+    clearScreen: vi.fn(),
   } satisfies Logger;
 }